Hard reset TP-LINK TL-WA801ND

Factory reset (Hard reset) Power on the access point. The reset button is on the rear panel and it is labeled either RESET. Press the button and hold for about 5 seconds or until the SYS LED starts flashing more quickly. Release and wait for approximately 30 seconds for the router to reboot. This method should work for the older version of this model as well. The SYS LED is on the front panel – the one that looks like a small sun. You might need to use a thin object to press into the Reset hole – a paperclip is a safe option.
Firmware Firmware link
Default username admin
Default password admin
Default IP address 192.168.0.254 or 192.168.1.254